After the sterilization of canned cooling, insulation or after storage must be checked, various indicators to measure its compliance with standards, compliance with trade requirements, and determine product quality and grade. Many projects and methods to check, following the production of a variety of beverages covered by professional, iron and aluminum EOE businesses - Packaging Co., Ltd., Dongguan City real promise to serve you a brief introduction about it. I hope you can help.

(一) visual inspection

The focus is on visual inspection to check the status of the double seam curling, curling double seam is observed closely and if there is dew tongue, clip edges, wrinkling fracture phenomena; check whether inwardly recessed cans bottom; Also check canned tightness, the specific method is: put the cans in warm water 80 ℃, if bubbles emerge, you can determine canned leak.

( 二 ) insulation checks

Canned food as a result of inadequate sterilization or other reasons causing microbes while remaining encountered growth and reproduction of the appropriate temperature will be leaving canned food spoilage. In addition to flat acid bacteria, most corruption will produce gas leaving canned expansion. SUMMARY According to this principle, for the growth and reproduction of microorganisms to create a suitable temperature and for a sufficient time to observe the can bottom is expanded, the degree of vacuum is reduced to discriminate whether the canned commercial sterilization requirements. This method is called insulation inspection canned.

(三) knocking sound check

The cans or cans stored after post-incubation arranged in rows, with a knock-by-beat sound canned stick back, from the sound to identify canned good or bad. Pronunciation crisp high vacuum, it is normal canned; lower pronunciation muddy vacuum, might have quality problems.

(四), canned vacuum degree examination

Vacuum of normal canned generally 27.1-50.8kPa, large cans may be appropriate to lower. Vacuum degree generally use the lower tip of the vacuum gauge measured directly into the center of the lid.

(五) cans inspection

To understand the changes in the status of the tank food cans must be checked.